Amazon fire tabs going for 30£ all over the place this Xmas. Markets, shops. Online. So come January sales you will see stuff dirt cheap.. Don't go with anything older than kit kat version firmware. Some of these newer apps don't work with jellybean.
That's what I'm on, a moto G 4G, 5yrs old but still fast & reliable battery still OK.
If I needed a new one I'd buy the same again. Obviously alot cheaper, win win.
Theres some good ones on ebay, but the above some of the users posted are quite good! I usually search for android and go low to high and check it out!